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@@ -0,0 +1,55 @@
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+
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+#
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+factorial_value = {}
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+
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+
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+def factorial(n):
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+ if factorial_value.get(n) == None:
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+ result = 1
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+ for i in range(1, n + 1):
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+ result *= i
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+ factorial_value[n] = result
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+ else:
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+ print(f'Get from cache value factorial({n})')
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+
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+ return factorial_value[n]
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+
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+
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+# ------------------------------------------------------------------------------
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+
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+
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+exchange_rates = {
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+ "USD": 1.0,
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+ "EUR": 0.861775,
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+ "GBP": 0.726763,
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+ "INR": 75.054725,
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+ "AUD": 1.333679,
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+ "CAD": 1.237816,
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+ "SGD": 1.346851,
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+}
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+
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+
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+def convert(fr, to, quontity):
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+ return round((quontity * (exchange_rates[to] / exchange_rates[fr])), ndigits=2)
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+
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+
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+def main():
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+
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+ print(convert("USD", "AUD", 1000))
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+ print(convert("EUR", "USD", 100))
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+
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+
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+ '''
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+ print(factorial(5))
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+ print(factorial(3))
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+ print(factorial(6))
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+ print(factorial(5))
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+ print(factorial_value)
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+ '''
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+
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+
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+if __name__ == '__main__':
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+ # main()
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+ # print(dir())
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+ print(globals())
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+
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